57145703 has 2 divisors, whose sum is σ = 57145704. Its totient is φ = 57145702.

The previous prime is 57145657. The next prime is 57145709. The reversal of 57145703 is 30754175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57145703 - 2⁸ = 57145447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57145703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57145709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28572851 + 28572852.

It is an arithmetic number, because the mean of its divisors is an integer number (28572852).

Almost surely, 2^57145703 is an apocalyptic number.

57145703 is a deficient number, since it is larger than the sum of its proper divisors (1).

57145703 is an equidigital number, since it uses as much as digits as its factorization.

57145703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 57145703 is about 7559.4776935976. The cubic root of 57145703 is about 385.1777511702.

Adding to 57145703 its reverse (30754175), we get a palindrome (87899878).

The spelling of 57145703 in words is "fifty-seven million, one hundred forty-five thousand, seven hundred three".